<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>百度</title>
    <style>
    
   
    </style>
</head>
<body>
<ul>
    <li>
    <video width="300px" height="300px" controls>
        <source src="../img/mp4.mp4" >
    </video>
    </li>
    <li>
        <iframe  src="http://www.taobao.com" width="100%" height="300px"></iframe>

    </li>
    <li>
        <iframe  src="http://www.tianmao.com"></iframe>
    </li>
</ul>

</html>